:evil: I?m working on a friend?s truck and i?ve run into a snag. It?s an ?84 S-10 2.8L 4X4, Well the problem is that for his 4-wheel drive to work it has a set of pneumatic tubes that come from the transfer-case up to a vacuum swith of some kind near his battery and i have no idea how it is suppose to be put back correctly and i can?t find any material that covers that.
"TheCarIsEatingMe" wrote: > :evil: I'm working on a friend's truck and i've run into a > snag. It's an '84 S-10 2.8L 4X4, Well the problem is that for > his 4-wheel drive to work it has a set of pneumatic tubes that > come from the transfer-case up to a vacuum swith of some kind > near his battery and i have no idea how it is suppose to be > put back correctly and i can't find any material that covers > that.
You should try to find someone with the same truck or at least the same transfer case (4x4 S-10 pick ups should be the same) and see how it is set up. Then hook everything up accordingly.
One line runs from a vacuum source to the transfer-case, the other runs from the transfer-case to the vacuum actuator under the battery tray. The vacuum actuator is connected via a cable to the central-axle-disconnect for the engagement of the passenger-side axle half-shaft to the front differential.
When the transfer-case is shifted into 4-Wheel drive, not only is the front driveshaft engaged, engine vacuum is applied to the actuator under the battery to pull on the cable, locking the passenger-side axle to the passenger-side of the front differential and allowing 4-wheel drive operation.
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